From: "Stephan Kämper" <Stephan.Kaemper@...>
Date: 2004-07-06T18:57:48+09:00
Subject: Re: Windows serial port

Hi John,

John Carter wrote:

> I'm trying to talk to a Windows serial port. COM1: in fact.
> Question 1. What is the best way to do this?
> 
> Question 2:
>   Currently I'm trying to use
>     http://ruby-serialport.rubyforge.org/
>   and getting  bizarre error message whenever I try to open a port for all
>   values of port I can think of...
> 
> (eval):13: in `create': No such file or directory - (Errno::ENOENT)
>   from (eval):13: in 'open'
> 
> I presume this must be in SerialPort::open
> 
> Any suggestions what to do? This is using ruby-1.8.1 on win2k

You might like to read what I worte over there:

http://rubyforge.org/forum/forum.php?thread_id=590&forum_id=227

Hmm, be sure that no other programm is reading/writing to/from that 
port. IIRC there may only be one program ocnnected to a certain port at 
a given time.

> Question 3:
> Anybody have a compiled version of http://grub.ath.cx/win32serial/?

I can remember I compiled it using MinGW. The resulting binary worked 
fine with the one-click-intaller.

As far as I remember, I ended up using Win32serial in the end, although 
I would have stongly referred ruby-serialport (because it's available 
for both unixoide OSes and Windows).
Unfortunately ruby-serialport dropped some bytes every now and then on 
the system I had to use at that time. (which was an old Win98 box, so 
you might try ruby-serialport on your 2K machine).



> Thanks,

Hope that helped.

Stephan